Window form C#

hi, i wants to take the items from a listbox and then store to a dictionary list like this:
Dictionary<string, double> sortList3 = new Dictionary<string, double>();
In the dictionary, the key is string and value is double.

The listbox content is as below:
{1 2} 4
{1 4} 6
{1 5} 7
{1 3 4} 8

The first column i want store as key, and second colum want to be the value of the dictionary list, what should do? Please help me, i really have no idea with this problem..

Hi. so this is actually a continuation from another question of mine[Here](https://www.daniweb.com/programming/software-development/threads/506795/dynamically-add-values-into-datagridview-cell-from-listbox-vb2010) but i was advised to start a new thread as the original question …

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